Gas-stove.



R. T. PARISEN.

GAS STOVE.

APPLHZM'ION HLED MAR. 5. I931.

Patentefi July 9, 1918.

2 SEEETS-SHEET l.

R. I. PARISEN.

GAS smve APPUCATIOH FILED MAR. B. 1911.

Patented July 9, 1918.

2 SHEETSSHEET 2.

INVENTOR tion chamber b ROBERT '.'l.. PA BISEN, OF PITTSBURGH,PENNSYLVANIA, ASSIGNOR TO LAWSON MANU- FACE-MG COMPANY, 01 PITTSBURGH,PENNSYLVANIA, A CORPORATION OF GAS-STOVE.

Specification of Letters Patent.

Patented'July 9, 1918.

. Application filed March 6, 1917. Serial No.-152,572.

To all whom itmay concern:-

Be it known that I, Ronna'r. T. PARISEN, a citizen of the United States,and resident of Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Im rovements inGas-Stoves, of which the ollowing is a specification.

This invention relates to certain improvements in the gas stove shownand described in the patent to J. M. Tobias, No. 1,121,691, December 22,1914. One object is to improve and render more efficient the innercombusso contracting the latter, particularl its ower portion, as toproduce substantial y perfect combustionthroughout the entire area ofthe chamber. A further object is to rovide a stove wherein the uprightwallorming end plates are adapted for use interchangeably at op ositeends of the stove, the construction being such that the burner may beentered through either end and whenso entered operates to close theburner receiving opening in the opposite end, the parts being alsoadapted for securin the burner to either end plate. Another 0 ject is torovide for so spacin the combustion cham r from the end p ates and forso closing the ends of the combustion chamber as to prevent dangerousoverheating of the stove ends.

The improved stove also embodies a top of novel construction which isadapted for use as a grill in the absence of a flue connection, or whichmay be utilized for attaching a ipe leading to a chimney.

n the accompanyin drawings, Figure-1 is a lon 'tudinal sectlonalelevation of a stove em odying the several features of the invention,and Fig. 2 is a sectional plan taken on line 2-2 of Fig. 1. Fig. 3 is acentral cross-sectional elevation of the stove,

and Fig. 4 is a top plan of the same. Fig. 5 is an elevation of theinner side of one of the wall formin end plates. Fig. 6 is a detail viewof portions of the combustion chamber.

Referring to the drawings, 2 are the opposite upright wall-formingplates which are of identical construction throughout, bein preferablycast from the same pattern an hence adapted to be used interchangeablyfor either end of the stove. Between and secured to the end plates isthe perforated body or drum portion 3 which is preferably bent toconform with the outline of the end plates, being held to the latter byouter flanges 4 of said plates and inner lugs 4.. The extremities of thesheet from which drum or bod 3 is formed preferably overlap beneath theurner, with the ends of the overlapped portions cut away to provide theair inlets 3', Figs. 1 and 2, at opposite ends of the stove.

Within the perforated body or drum 3 is combustion chamber 5 which isformed of two interchangeable castings adapted to be united'as shown.Each of said castings consist of a perforated side wall 6 and oppositeendwalls 7, one of the end walls carrying the joint-covering notchedflange 8 which embraces a boss 8 on the adjoining end wall, and at thetop of the castings are the corresponding joint-lapping flanges 9. Thus,both portions of the combustion chamber may be cast from the samepattern, dispensing with right-hand and left-hand parts. The ends of thecombustion chamber are fitted to and spaced from the wall-forming endplates 2 by notched lugs 10 and 10 ing flanges 8 and bosses 8', asshown. A 85 transverse bolt 12 serves to unite the opposite portions ofthe combustion chamber, maintaining it assembled until it can bepositioned between lugs 10 and 10 and bolts 11 inserted.

The end walls 7 of the combustion chamber are closed above the lightingslots 7' formed in the lower portions thereof, and with said wallsspaced from end plates 2, the latter do not become excessively heated.

At the base of the combustion chamber is the elongated hollow gas burner13 which is preferably of rectangular cross-section and extends from endto end of the stove. Each end wall 2 is formed with an opening 14adapted to receive andbe substantially filled by the burner, and thelength of the latter is such that it extends through the stove andenters and closes opening 1a in the opposite end wall.- A tapped. lug 15projecting downwardly from the burner ad ar cent its extremity isadapted to aline with bolt passage 16 in one or the other end wall forreceivin bolt or'screw 17 which holds the burner in place. Thus it willbe seen that it is quite immaterial which end of the stove receives theburner, the result in either case being the same.

The burner comprises a tie for uniting the opposite end walls 2, this inaddition to the tie formed by combustion chamber 5. In order that theburner, which remains relatively cool, may compensate for the ex.-pansion and contraction of the combustion chamber and the resultingrelative movements of walls 2, the projecting portion of burner 13 isformed with a boss 13, and fitting theouter end of the burner is collar18 of the mixer attachment which is formed v with a bayonet slot 18adapted to interlock with the boss as shown, being thus held by coiledspring 19. With the spring thus contracted between wall-forming plate 2through which the burner extends and the abutment-forming collar 18, itcomprises resilient means for uniting the frame and the tie-formingburner. Any suitable form of gas cook may be employed. The air admittedto the burner is preferably controlled by the adjustable sleeve ordamper 20.

A characteristic of the invention is the construction and arrangement ofthe combustion chamber with reference to the burner. By contracting theperforated sides of the combustion chamber they are caused to rise insubstantially parallel relation, there being only slight upwardconvergence, the combustion chamber being relatively narrow and thelower portions of its walls being close to the burner, leaving only therelatively narrow air inlet passages 21. This construction andarrangement effectually closes the combustion chamber in such manner asto produce substantially perfect combustion throughout its entire area,a result that cannot be obtained with the parts arranged as shown in theTobias patent above referred to.

The top member 22 of the stove is a distinctive feature of the presentinvention, and consists of a cap-like casting which embraces the upperextremities of end walls 2 to which it is secured by bolts 22'. Top 22is laterally closed and is of such expanse as to collect and direct anyfumes or products that may issue upwardly from the erforated drum orbody. The outer sur ace of top 2 is preferably flat and perforated toprovide a grill 23 for heating or cooking purposes if no fiue pipe isused. If a flue 24 is desired or required, the grill-forming narasoe topportion provides for conveniently con tion of the stove, particularlywith regard to the combustion chamber 5, is such as to maintainsubstantially perfect combustion, so that there are no products norwaste gases. However, provision is made for a flue to meet therequirements of those users who wish to observe every precaution or toconform to the regulations of municipalities where the use of gas stoveswithout flues is prohibited.

I claim: v

1. A- gas stove comprising opposite wallforming'plates, a combustionchamber be tween and secured to said plates with the combustion chamberadapted to expand and contract, a gas burner for the combustion chamberwith the burner comprising a tie for uniting said plates, and resilientmeans for uniting the burner and plates.

2. A gas stove comprising opposite wallforming plates with one of saidplates formed with aburner passage, a combustion chamber between andsecured to said plates, a burner of greater length than the distancebetween said wall-forming plates with the burner entered in said platepassage and secured to the opposite wall, and resilient means securingthe burner to said passageformed plate.

3. A gas stove comprising opposite wallforming plates, a combustionchamber between and secured to the plates,- one of the plates having aburner receiving passage, a burner of greater length than the distancebetween said wall-forming plates with the burner entered through saidpassage and secured to the opposite wall-forming plate,

the burner having an abutment at the exterior of said passage-formedplate, and a coiled spring embracing the burner intermediate saidabutment and the passageformed plate.

4. A gas stove comprising opposite wallforming plates with one ofsaidplates formed with a burner passage, a combustion chamber between andsecured to the plates, a burner of greater length than the distancebetween said plates and adapted to be entered through said passage andbe secured to the opposite plate, the burner having a boss at its outerend, and an abutment-forming collar adapted to fit the extremity of theburner and formed with a bayonet slot adapted to embrace the burner lug,and a coiled spring encircling the burner intermediate said collar andsaid passage-formed p ate.

5. A gas stove comprising opposite upright wall-forming end plates, anintermediate perforated body-forming portion se- -cured to the plates, alaterally closed top In testimony whereof I afiix my signature membersecured to the end plates'and proin presence of two witnesses.

viding a cap for the perforated body por- ROBERT T. PARIS'EN. tion,- thetop member having a grill-forming Witnesses: 5 perforated top surfaceshaped to receive a J. M. NEsBrr,

flue pipe, and a gas burner within the stove. E. B. MOLTER.

